
Did not appear in Saturday Evening Post story, but quoted in Einstein: His Life and Universe http://books.google.com/books?id=dJMpQagbz_gC&lpg=PP1&pg=PA387#v=onepage&q&f=false by Walter Isaacson, p. 387, in the section discussing Viereck's interview.
1920s, Viereck interview (1929)